west Humboldt milkvetch
|
Higgins' freckled milkvetch, Higgins' milkvetch
|
Plants perennial (rarely flowering first year), 6–30 cm. |
Plants perennial, 15–25 cm. |
4–11 cm; leaflets (9–)13–19, blades obovate or oblanceolate, 4–20 mm, apex mostly retuse, surfaces strigulose-villosulous, some hairs spreading or sinuous. |
3–11 cm; leaflets 15–21, blades lanceolate-elliptic to obovate, 8–18 mm, apex emarginate. |
(8–)12–30-flowered, short and compact in fruit; axis (2–)3–7(–9) cm in fruit. |
7–17-flowered, short and compact in fruit; axis 1–4 cm in fruit. |
2.5–7 cm. |
3–6.5 cm. |
9.3–11.3 mm; calyx (4.5–)5–7.1 mm, tube 3–3.8 mm, lobes (1.5–)2–3.3 mm; corolla usually whitish, sometimes purple or pink-purple. |
17–20 mm; calyx 7–10.4 mm, tube 6–6.8 mm, lobes 3–3.5 mm; corolla pale violet. |
green, faintly mottled, or stramineous, obliquely ovoid or subglobose, strongly inflated, 15–25 × (6–)8–14 mm, thinly papery, translucent, glabrous or strigulose; beak 3–7 mm, unilocular. |
green, sometimes mottled, becoming stramineous, ovoid, greatly inflated, 19–27 × 11–16(–19) mm, semibilocular, stiffly papery, thinly translucent, glabrous. |
18–26. |
30–35. |
|
|
|
|
Flowering Apr–Jul. |
Flowering Apr–early Jun. |
On sand, with sagebrush. |
Sandy to loamy soils, with Ptelea-Rhus-Prosopis, and yucca, oak, mesquite communities. |
1100–1800 m. (3600–5900 ft.) |
800–1100 m. (2600–3600 ft.) |
NV |
NM; TX |
Specimens of var. macrolobus, apparently flowering the first year, have been misidentified as Astragalus geyeri, which is clearly annual and has straight, appressed (not villosulous) indumentum. Variety macrolobus occurs in northern Nevada. To the north and east, it grades into var. salinus and to the west into var. floribundus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Variety higginsii, from Chaves County in New Mexico, and Hudspeth, Hutchinson, and Potter counties in Texas, almost certainly is a derivative of var. diphysus, differing only in its pale flowers. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
FNA vol. 11. |
FNA vol. 11. |
Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus |
Fabaceae > subfam. Faboideae > Astragalus > sect. Diphysi > Astragalus lentiginosus |
A. lentiginosus var. albifolius, A. lentiginosus var. ambiguus, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. higginsii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. maricopae, A. lentiginosus var. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus |
A. lentiginosus var. albifolius, A. lentiginosus var. ambiguus, A. lentiginosus var. antonius, A. lentiginosus var. australis, A. lentiginosus var. chartaceus, A. lentiginosus var. coachellae, A. lentiginosus var. coulteri, A. lentiginosus var. diphysus, A. lentiginosus var. floribundus, A. lentiginosus var. fremontii, A. lentiginosus var. idriensis, A. lentiginosus var. ineptus, A. lentiginosus var. kennedyi, A. lentiginosus var. kernensis, A. lentiginosus var. latus, A. lentiginosus var. lentiginosus, A. lentiginosus var. macrolobus, A. lentiginosus var. maricopae, A. lentiginosus var. micans, A. lentiginosus var. mokiacensis, A. lentiginosus var. multiracemosus, A. lentiginosus var. negundo, A. lentiginosus var. nigricalycis, A. lentiginosus var. oropedii, A. lentiginosus var. palans, A. lentiginosus var. piscinensis, A. lentiginosus var. platyphyllidius, A. lentiginosus var. pohlii, A. lentiginosus var. salinus, A. lentiginosus var. scorpionis, A. lentiginosus var. semotus, A. lentiginosus var. sesquimetralis, A. lentiginosus var. sierrae, A. lentiginosus var. stramineus, A. lentiginosus var. toyabensis, A. lentiginosus var. trumbullensis, A. lentiginosus var. variabilis, A. lentiginosus var. vitreus, A. lentiginosus var. wahweapensis, A. lentiginosus var. wilsonii, A. lentiginosus var. yuccanus |
Cystium macrolobum |
|
(Rydberg) Barneby: Leafl. W. Bot. 4: 89. (1945) |
S. L. Welsh & K. H. Thorne: Brittonia 33: 296, fig. 2. (1981) |
| |